Question 768193
Commission is paid on
top of the salary, but it is paid for
selling a certain cash total of items,
such as cars.
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Does the problem say that a certain 
value of sales were made?
Suppose $1,000 in sales were made.
{{{ .3*1000 = 300 }}}
$300 would be the commission.
Then the total pay is {{{ 280 + 300 = 580 }}}
$580